The fleece from one sheep can be spun into a strand of wool 124 miles (200 kilometers) long. Full-grown sheep can weigh up to 400 pounds (180 kilograms). These engaging facts and more are waiting to be discovered in Sheep, an Animals on the Farm book. This is an AV2 media enhanced book. A unique book code printed on page 2 unlocks multimedia content. This book comes alive with video, audio, weblinks, slide shows, activities, hands-on experiments, and much more.